CLOSURE FOR A PRODUCT-RETAINING CONTAINER
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United States of America Patent
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Jul 24, 2017
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Aug 2, 2016
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Abstract
A closure for a product-retaining container is constructed for being inserted and securely retained in a portal-forming neck of said container. The closure comprises: a plastic material comprising at least one thermoplastic polymer; a plurality of particles comprising cork; and at least one processing aid. Optionally, one or more additives and/or blowing agents may be included. A method for manufacturing a closure comprises intimately combining multiple components, heating the resulting composition to form a melt, forming a closure precursor from the melt, and optionally cutting and/or finishing the closure precursor to form the closure.
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